Hi I am new to linux org and hope I can receive the info I need here. I run skackware 12.2 and sendmail. I also run a mailing list of about 900 people. I recently switched to dsl from dialup and I have about 6 ip's
returning my mail with either "Hostname lookup failure" or Timeout waiting for data. All the other ip's on the list work fine. I have contacted these ip's and they say the problem is on my end, but I yet to figure it out. Although I have a static IP the only way to connect through the router is with DHCP. Although my DNS is programmed in the router, the DHCP automatically changes my resolv.conf to:

#Generated by dhcpcd for interface eth0
nameserver 192.168.0.1

That is not my true DNS. That is the DNS for the router and when I manually change my resolv.conf to my true dns the emails still bounce.

Any help would be so much appreciated

mirader

C-Sniper

05-13-2009 12:08 PM

try looking in /etc/mail/sendmail.cf for the parameters that you need. I am doing some configuration in that file myself right now and I think you can put your providers in there and it will pull mail from them.

Im not 100% sure but I *think* that is where you should look.

mirader9813

05-13-2009 12:17 PM

These ip's can send mail in to me. I just can't send mail to them. I have no clue what or where to put parameters in sendmail.cf. Can you help me there? I hate being a pest but I really need to fix this problem and I am quite new to sendmail. Thanks. Here is one of the return email messages I get: